yes
same thing. but its easy to change y=b+mx to y=mx+b
Yes.
It is impossible to give any decimal/numeric value if we are not given the values of at least one variable, so the answer is B + B + B + C + C + C.
No, my parent are A+ and B+ and I'm fine. I think...
Without any information about a or b or c, all that can be said is: a + b + 2c = a + b + 2c Not particularly illuminating!
4b.
4b
addition a + b
any number
b+b+b+c+c+c+c =3b+4c
7 + 8 = 15 = 8 + 7 The commutative property of addition states that a + b = b + a for any a and b.
There is an ambiguity whether you square the sum of a plus b, or only b. In any case, I don't think you can simplify this expression.